Independent directory Public ClinicalTrials.gov records United States
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ClinicalTrials.gov public records Last synced Oct 27, 2026, 3:01 PM EDT

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Showing 673–680 of 680 matching trials from the live ClinicalTrials.gov search.
Not listed No phase listed Observational

Impact of Tecfidera on Gut Microbiota

NCT02736279
Conditions
Multiple Sclerosis
Interventions
Dimethyl fumarate
Drug
Lead sponsor
Virginia Simnad
Other
Eligibility
18 Years and older
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2020
U.S. locations
1
States / cities
Kirkland, Washington
Conditions
Colorectal Cancer, Metastatic Colon Cancer, Metastatic Colorectal Cancer
Interventions
Exercise Program
Behavioral
Lead sponsor
Dana-Farber Cancer Institute
Other
Eligibility
18 Years to 50 Years
Enrollment
84 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2028
U.S. locations
1
States / cities
Boston, Massachusetts
Completed Not applicable Interventional Accepts healthy volunteers

The Salty Gut: Effects of High Dietary Salt Intake on the Gut Microbiota

NCT04229680
Conditions
Cardiovascular Risk Factor
Interventions
High Salt, Recommended Salt
Other
Lead sponsor
University of Delaware
Other
Eligibility
18 Years to 45 Years
Enrollment
31 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2021
U.S. locations
1
States / cities
Newark, Delaware
Active, not recruiting Not applicable Interventional

A Study of Healthy Microbiome, Healthy Mind

NCT06020703
Conditions
Critical Illness, COVID-19, PICS, Cognitive Impairment, Mental Health Impairment, Weakness, Muscle, Dysbiosis
Interventions
Fermented Food Diet
Behavioral
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
1
States / cities
Rochester, Minnesota
Completed Not applicable Interventional Accepts healthy volunteers

ZOE METHOD Study: Comparing Personalized vs. Generalized Nutrition Guidelines

NCT05273268
Conditions
Personalized Nutrition
Interventions
Personalized nutrition, Generalized nutrition
Other
Lead sponsor
Zoe Global Limited
Other
Eligibility
40 Years to 70 Years
Enrollment
347 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
1
States / cities
Boston, Massachusetts
Conditions
Obesity, Type2 Diabetes
Interventions
no intervention used
Other
Lead sponsor
North Dakota State University
Other
Eligibility
18 Years to 65 Years · Female only
Enrollment
19 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017
U.S. locations
1
States / cities
Fargo, North Dakota
Not yet recruiting Not applicable Interventional Accepts healthy volunteers

High-Resolution Measurements of Diet-Microbiome Interactions

NCT07856823
Conditions
IBS (Irritable Bowel Syndrome)
Interventions
Inulin, Low-fiber control breakfast shake, Atmo Gas-Sensing Capsule, CapScan Regional Fluid-Sampling Capsule
Dietary Supplement · Other · Device
Lead sponsor
Stanford University
Other
Eligibility
18 Years to 75 Years
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2028
U.S. locations
1
States / cities
Stanford, California
Completed No phase listed Observational Accepts healthy volunteers

Gut Microbiota Post Roux-en-Y Gastric Bypass Surgery

NCT02654496
Conditions
Obesity
Interventions
Meal challenge
Other
Lead sponsor
North Dakota State University
Other
Eligibility
18 Years to 65 Years · Female only
Enrollment
19 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2017
U.S. locations
1
States / cities
Fargo, North Dakota